I should know these two things, but....

Speakers with two pos/neg, like this:


Pos op of rcvr > red spkr pole

Neg op of rcvr > black spkr pole

K, got that.

Do I do this horizontally, or vertically? Or does it matter?

And if there is one l/r op from the rcvr, do I make use of the other two poles somehow?

Thanks in advance. 

As long as the jumper is there they are connected to each other and it does not matter which terminal top or bottom you want to use.

So, the jumper is there. They go top to bottom. I have hooked the wire up horizontally - when I turn my rcvr on later, I will hear sound. No really, I will :)

What is the purpose of the 2nd pair of terminals?